I installed chromium-browser
6.0.472.63~r59945-5 from debian testing,
started awesome with the default config
in Xephyr and opened an urxvt (so there
is something that it can
"toggle" the focus to). Then I
opened chromium and fullscreen'd it
via mod1+m (I changed modkey to
"mod1"). It was
fullscreen'd. Then I moved the
mouse pointer to the left screen edge.
Nothing happened.